FILE 1 file1_1.cc FILE 2 file1_2.cc FILE 3 file1_3.cc FUNC 1000 Function1_1 1000 44 1 1004 45 1 1008 46 1 FUNC 1100 Function1_2 1100 65 2 1104 66 2 FUNC 1200 Function1_3 FUNC 1300 Function1_4